
Preheat oven to 325°. Beat eggs until smooth. Fold in salt and almond flour then Nutella.
Pour into 8x8 pan lined with parchment. Bake at 325 for 20 minutes.
Preheat oven to 325° Fahrenheit. Line 8x8 baking dish with parchment paper and set aside.
Add eggs to large bowl and beat until smooth. Gently fold in almond flour and salt, then add chocolate-hazelnut spread. Fold until well combined.
Transfer batter to baking dish. Top with chopped hazelnuts, if desired. Place in preheated oven and bake 20 minutes, or until knife (or toothpick) inserted in center of brownies comes out clean or with just a few crumbs. Let brownies cool completely, then cut into 9 squares and serve.